Elbow assembly for patient interface



FIG. 1 is a front perspective view of an elbow assembly for a patient interface according to our new ornamental design;

FIG. 2 is a reverse perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a left side view thereof with the right side view being a mirror image thereof. 

The ornamental design for an elbow assembly for a patient interface, as shown. 